Drag-bucket.



G.' H. WILLIAMS,

DRAG BUGKET.

APPLIOATIONPILBD SEPT. 2; 1910.

Patented Mayzl, 1912.

s' SHEETS-SHEET a.

. l Q U E. Q E ma .3. Y. u oo c.. 5 Q C Q fda/7 UNITED sTATEs PATENToEEICE.

GUELCN II. WILLIAMS, 0E CLEVELAND, oHIo, AssIGNoR To THE c+.

COMPANY, or CLEVELAND, omo, A CORPORATION 0E oHIo.

H. WILLIAMS 'DRAG-BUCKET.

Specification of Letters Patent.

Patented May 21, 1912.

Application filed September 2, 1910. Serial No. 580,241.

To all whom it may concern:

Be it known that I, GUEDON H. WILLIAMS, a citizen of the United States,resident of Cleveland, county of Cuyahoga, and State of Ohio, haveinvented a new and useful Improvement in Drag-Buckets, of which thefollowing is a specilication, the principle of the invention beingherein explained and the best mode in* which I have contemplatedapplying that principle, so as to rdistinguish it froln otherinventions.

My invention relates to excavating de vices, and particularly to thatclass thereof ordinarily referred to as drag buckets.

The object of my invention is to construct a drag bucket which will beeconomical in its manufacture and eiiicient in its operaj tion. n j

The said invention consists of means hereinafter fully described andparticularly set forth in the claims.

The annexed ldrawingsandthe following description set forth in detailcertain mechanism embodying `my invention, the disclosed means, however,constituting but one of various mechanical forms inwhich the principleof the invention may be used.

In saidA annexed drawings :-Figure 1 isy a ,perspective of a dragbucketembodyingv myk Invention, showing the same in. the position which itoccupies when effecting its operative or excavating function. Fig. la isa detail section. Fig. 2 is a perspective of a bucket shown in theposition which it occupies when being hoisted with a load. Fig. 3 is aperspective of the bucket shown in `its dumping or discharging position.Figs: 8a and 3b are detail sections of parts of the mechanism. j I j Thebucket embodying my invention comprises the following general parts:first,

the drag line A, which comprises the main drag line member A, theauxiliary controlling drag line member A2, and the secondary dragflinemember or loopAS; second, the frame B; third, the oscillatory arm C;fourth, the scoop member or bucket D, and, fifth, the hoistingline E. YY

lThe frame B consists-ofthe two side bars o b braced bythe cross pieceo', and having their lower ends p-ivoted on pins d ixed to the oppositeside members d d of the scoop member, as shown in detail in Fig. la. Theupper ends of the side bars b b converge and embrace between them the.uprights b2 b2, Fig. 2, whose lower ends are suitably secured to thecross bar o. A pin o3 is seated in the upper ends of the members b2 b2,to which is hitched the hoisting line E.

A pin b4 passes through the `uprights b2 b2 and forms a journal for asheave B. vThe ends of this pin project sufficiently, as shown in Fig.3a, to form a. journal for the upper ends of two side members o o ,ofthe oscil-y a second sheave C, located between the two bars c c. Theouterends of this pin project suiiiciently to form journals for rollersC2 C2 which run upon a track D forming apart of the bucket or scoopmember D, as shown in said Fig. 3". At a point fixed to the curved rearmember of the bucket or scoop member is a staple D2, to which is hitchedthe auxiliary controlling member A2 of the drag line. This auxiliarymember passes from the said staple around the under side of the sheave Cand then over the sheave B, its other end being secured to a link a, towhich the main Adrag line member A is secured. Also secured to the linkais the loop A3, whose extremities are respectively secured to theclevises d2 cl2.' These latter are secured by means of suitable boltsand nuts als which pass through suitable apertures d? formed in theopposite side members of the bucket or scoop. A plurality of theseapertures, are provided, as shown in the drawings, wherebyV t-heclevises .may be placed at different posit-ions, and therefore the dragline loop connected with the bucket or scoop atvarious points near themouth or scooping `'end of the 4scoop member, `as will be readilyunderstood.

Fixedly secured to the side members re-f I kspectively and upon theoutside thereof, are

l(it) two stops D3 D2, as shown in Fig. 1, which limitthe oscillatorymovement of the frame B with reference to the scoop member. The axis ofoscillation of the scoop member on its frame is placed so that when thedrag line is slackened, thel bucket will normally assume an'open ordischarging position, as shown in Fig'. 3.

From the above description, it will be noted that when the auxiliaryline A2 is in tension, the free end of the oscillatory arm C tends tomove toward the bucket, that is, the two rollers c c are caused toengage and run upon the track D.

The under side of the bucket D is provided with a runner d5, whichserves as a bearing upon the surface of the earth when the bucket isbeing dragged along in its operative or excavating position, and therebyserves to maintain the bucket in such position during such operation, aswill be readily understood.

I shall now describe the operation of the mechanism as above described,and in so doing will first assume that the bucket is in its dumping ordischarging position, shown in Fig. 3, in which the boom or hoistingline E is perpendicular, and the drag line is slacked off, and thereforenot in tension. The parts being in this position when it is desired toeifect an excavating operation, the boom or hoisting` line is slackenedoff until the bucketstrikes the ground. Vhen this occurs, the cutting orexcavating edge of the bucket strikes the ground first, and when theboom or hoisting line is further slackened away the bucket drops so asto assume the position shown in Fig. l, in which the runner Z5 is incontact with the ground also. A further slackening away of the boom linepermits the frame B to fall forward slightly until it strikes the stopsD2, as shown in Fig. l, the drag line, it being understood, being stillslacked away, and the auxiliary line A2 therefore being permitted to runaround the sheaves B and C, vthe rollers c c running backward on thetrack D. The boom line is then permitted to run free and the drag linethen brought up taut, until the loop A3 and auxiliary line A2 are taut.A further hauling of the drag line will therefore drag the bucket andeffect an excavating operation. This dragging operation is continueduntil the bucket is full. lVhen this occurs, the boom or hoisting lineis then hauled in, the drag line, however, being permitted to slack off,but at the same time remain in tension. This will maintain theengagement of thel frame B with the stops D2 D2, and bring the bucketinto the position shownin Fig. 2, which is the position in which thebucket and its load is raised. Then the bucket is now raised to theposition above that in which the load is to be deposited, the drag' lineis slacked off and the buckettherefore permitted to oscillate by gravityupon its axis, and the load so discharged and deposited.

Having fully described my invention, what I claim and desire to secureby Letters Patent is '1. In a. drag bucket, the combination of a frame;a scoop member oscillatorily mounted upon the latter; a hoisting linesecured to said frame; an oscillatory arm mounted upon said frame; andadrag line connected with said scoop member and engaging said oscillatoryarm and frame, said drag line adapted to cont-rol the oscillation ofsaid scoop member.

2. In a drag bucket, the combination of a frame; a scoop memberoscillatorily mounted upon the latter; a hoisting line secured to saidframe; a sheave mounted in the latter; an arm oscillatorily mounted uponsaid frame, and carrying a sheave at its free end; and a drag linepassing over said two sheaves and having its free end secured to saidscoop member.

8. In a drag bucket, the combination of a frame; a scoop memberoscillatorily mounted upon the latter; a sheave mounted upon said frame;an arm oscillatorily mounted upon the latter and coaxially with saidsheave, said arm carrying a sheave at its free end; and a drag linepassing over said two sheaves and having its extremity secured to saidscoop member.

4. In a drag bucket, the combination of a frame; a scoop memberoscillatorily lmount.- ed upon the latter; a hoisting line secured tosaid frame; the axis of oscillation of said member being located so thatit will normally assume a discharging position; a sheave mounted uponsaid frame; an arm oscillatorily mounted upon the latter, carrying asheave at its free extremity; an auxiliary drag line member passingthrough said two sheaves and having its end secured to the scoop memberat a point intermediate of the frame and said second named sheave whenthe scoop member is in its hoisting posit-ion; and a main drag linemember connected with the forward or scooping end of said scoop memberand also connected with said auxiliary drag line member.

5. In a drag bucket, the combination of a frame, a scoop memberoscillatorily mounted upon the latter; a stop adapted to limit suchoscillation, said stop being arranged so that when operative the scoopmember will be in a raised or retaining position when suspended; ahoisting line secured to the frame for suspending the bucket; arearwardly extending auxiliary frame oscillatorily mounted upon saidfirst-named frame,

provided with anti-friction rollers at its rear said scoop member, saidauxiliary line being 10 end adapted to engage the rear end of the alsoconnected with said drag line.

bucket; a sheave in the free end of Said Signed by me, this 1st day ofSeptember, auxiliary frame; a sheave mounted on said 1910.

rstmamed frame; a line for controlling the oscillation of the scoopmember, passing f GURDON H -VVILLIAMS' over said sheaVesva-nd having itsone end se- Attested by* cured to the rear end of said scoop member;WINIFRED WALTZ,

a drag line connected Wit-l1 the front end of CUR'r B. MUELLER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

